BEIJING (Reuters) - Western powers should take into consideration Russia's legitimate security concerns over Ukraine, a top Chinese diplomat has said in an unusually frank and open display of support for Moscow's position in the crisis.

Qu Xing, China's ambassador to Belgium, was quoted by state news agency Xinhua late on Thursday as blaming competition between Russia and the West for the Ukraine crisis, urging Western powers to "abandon the zero-sum mentality" with Russia.